Smokeydope
@Smokeydope@lemmy.world
- Comment on Fictional 1 week ago:
Its more related to limits of knowability of events beyond a certain scale. Its easy an intuitive to think of it like pixels on a grid with a minimum requirement of time and energy to move between them units but its not that simple or at least that kind of granular discreteness is not proven (though there are digital physics frameworks that treat spacetime discrete like this)
The Planck length does not define the minimum distance something can move but rather the minimum scale of meaningful measurement that can make a bit of distinction between two microsstates of information.
Its a precision limit that defines how exact we can measure interactions that happen within the distance between two points.
It’s possible that spacetime is continuous at a fundamental level, but the Planck length represents the scale at which quantum fluctuations of spacetime itself become so violent that the concepts of a ‘path’ or a ‘distance’ can no longer be defined in the classical sense, effectively creating discrete quantized limits for measurement precision.
Ultimately this precision bound limit is related to energy cost to actualize a measurement from a superposition and the exponetial increase in energy needed to overcome uncertainty principle at smaller and smaller scales. The energy required to actualize a meaningful state from a sub-planck length would be enough to create a kugelblitz black hole made from pure condensed energy.
- Comment on Fictional 1 week ago:
Is the speed of causation propagation linked to plank length?
Yes, more specifically the Planck length is derived from an equation involving the speed of light/causality.
Where C is light, h is reduced planck constant, and G is gravitational constant. Together they tell us the fundamental unit length of meaningful distinction, a very important yard stick for measuring the smallest distances.
- Comment on Fictional 1 week ago:
I have no religious beliefs. The thing that trips me up is how is there matter in the first place if none can ever be created? Why was there stuff at a single point at some time
The “matter/information can’t be created or destroyed” thing only applies to closed systems within their own operational bounds. It’s about logical consistency within a closed set, but that tells us nothing about where the closed set itself came from. All the energy from the big bang/first universal iteration was loaned from somewhere else. The how and why of this is probably going to remain a mystery forever because our simulations of the laws of physics can’t go back to before the big bang.
So the nature of the big bang and why anything exists is one of the big open-ended philosophy-of-science questions that there isn’t an easy falsifiable answer to. It’s up to interpretation. I have my own theories on the topic but any guess is as good as another.
From the good old classic “Because God Did It™” to “bubble universes that foam out from a hyperdimensional substrate with random laws of physics/math that sometimes allow for observation and life” and everything in between. It’s all the same to me because we can’t prove anything one way or the other.
- Comment on Fictional 1 week ago:
What your asking directly stems from two related open ended philosophy-of-science questions. These would be " Are universal constants actually constant?" and “Does the speed of light differ in speed at any point of time in its journey between two points of space in a continuous substrate?”
The answer to both like all philosophy questions is a long hit on the pot pipe and a “sure man, its possible but remains unlikely/over engineering the problem until we have justification through observing it” however I’ll give my two cents.
“” Are universal constants actually constant?" " it probably depends on the constant. Fundamental math stuff that tie directly into computations logic and uncertainty precision limits like pi are eternal and unchanging. More physics type constants derived from statistical distribution like the cosmological constant might shift around a little especially at quantum precision error scales.
The speed of light probably is closer to the first one as its ultimately about mathematically derived logical boundaries on how fast any two points universe can interact to quantize a microstate. Its a computational limit and I don’t see that changing unless the actual vaccum substrate of spacetime takes a sudden phase shift.
“Does the speed of light differ in speed at any point of time in its journey between two points of space in a continuous substrate?”
Veritasium did a good video about this one. The answer is its possible but currently unmeasurable . so if all hypothesis generate the same effective results then the simplest among them (light maintaining a constant speed during both ways of trip) is the most simple computationally efficient hypothesis among them.
- Comment on Fictional 1 week ago:
Do you really believe that in all of eternity, we happen to be just four and a half billion years in? We are probably on our infinite life, and have infinite more to go. Just completely random lives, no idea where we will end up, nothing persists.
Yes I do. There’s a difference between the philosophical idea of an eternal process of cosmological rebirth, and the experimentally observed behaviors of the current universe we live in captured with our most powerful instruments and our best mathematical models.
In the 20th century we built telescopes powerful enough to see into the very distant universe and track the movement of galaxies. Because of this technological achievement we observed some strange things.
First was that galaxies seemed to be moving further and further away from each other. Not only that, they were moving away at an accelerating pace. This uncovered the idea of cosmological expansion, that over time our universe “spreads out” and creates new space between already distant objects.
Second, because the speed of light is finite, this creates fundamental limits to how far we can observe (the cosmological horizon) and a crazy cool phenomenon where the further you look into the distant universe the further back in time you look due to the age of the light from the star and the distance it traveled. We can literally see how the universe looked billions of years ago and calculate how far back we are looking.
If you look back far enough with extremely low frequency radio telescopes you can map out the thermal radiation from when the universe was extremely hot and dense about 380,000 years after the Big Bang. This is called the Cosmic Microwave Background. It shows the universe was in a very condensed high energy state.
Third, we have concepts such as the second law of thermodynamics that says entropy increases in closed systems. Energy always spreads out and systems tend toward disorder on a global level. We have equations that very accurately describe this distribution.
With these breakthroughs we had enough data to simulate accurate matter distributions of the current universe, observe and accurately model matter distributions in the distant past, and use that model to find a best prediction of what may happen in the future with what we currently know. All three lines of evidence point to a universe that is roughly 13.8 billion years old with a definite beginning and end state.
This can still be reconciled with spiritual beliefs if your willing to redefine eternity to something more like an eternal cycle of rebirth with the heat death of one universe bootstrapping the creation of the next iteration. You may enjoy Futuramas bit on it.
- Comment on Fictional 1 week ago:
The actual answer is because the universe had to pick a finite number and it probably doesnt use meters as an internal measurement ruler for scaling so
- Comment on YSK: there's a lite version of DuckDuckGo 2 weeks ago:
I don’t see a problem, no signs of encroaching corporate enshittification or AI in that screenshot :)
- Comment on YSK: there's a lite version of DuckDuckGo 2 weeks ago:
Theres still browsers like waterfox, librewolf, palemoon, ungoogled chromium. For search engines theres SearX(NG), 4get.ca, YaCy, some more obscure ones like qwant or marginalia.search and a dozen other resellers of google and bing that nobody cares about.
- Comment on Everyone should have a home server (or a friend that has one) 4 weeks ago:
IMO 4k resolution is overkill its way past the optimal between file storage and visual fidelity. Nobody has ever complained about the visual quality of my 720p or 1080p sourced stuff. Bhack in my day we were lucky to get 480p on a square box tv.
- Comment on What's the real danger of opening ports? 5 weeks ago:
Less danger than OPsec nerds hype up but enough of a concern you want at least a reverse proxy. The new FOSS replacement for cloudflare on the block is Anubis github.com/TecharoHQ/anubis, while Im not the biggest fan of seeing chibi anime funkopop girl thing wag its finger at me for a second or two as it test connection, I cannot deny the results seem effective enough that all the cool kids on the FOSS circle all are switching to it over cloudflare.
- Comment on I wrote a simple tool chain for creating HTML pages for my self-hosted website. I released it publically under GPL3. Source linked inside 1 month ago:
Similar story here! A couple years ago learning about Gemini/gopher/smallnet from mentaloutlaw videos. So I joined a public access Unix server (first SDF later tilde.team) and learned how to write my own capsule site for a few years. Learned some basic .CGI bin and awk processing to create a gemtext to epub converter that made small ebooks of daily post in atom feed. It was like training wheels really helped prepare me for the transition to full self hosting.
- Comment on I wrote a simple tool chain for creating HTML pages for my self-hosted website. I released it publically under GPL3. Source linked inside 1 month ago:
Thanks for sharing! It was a good read.
As someone whos been using the protocol for a few years now what I would say is that this person is someone who hasn’t actually engaged with the protocol meaningfully and whos only opinions are based on technical nitty gritty of rcf specs opinions. They have good points for security and clarity revisions. Most people aren’t aware of or dont really care about those things. Some things are exaggerated like storing certificate keys in your browser isnt a problem Lagrange does it beautifully. A lot of choices were made to dissuade feature creep. Youre probably never going to do banking through Gemini but its also pretty much gaurenteed you’ll never need adblock either.
Gemini is appealing from the perspective of novice self hosters. Its simple enough that most people can set up a simple server and publish on their site within a few hours. Its minimality enforces maximizing the most reading content for least bits used. 95% of modern webpages isnt even for reading or reference its all back end trackers and scripts and fancy CSS.
When I read through a gemtext capsule I get the impression I’m looking at something that was distilled into its most essential. No popups no adds no inline images or tracking scripts or complex page layouts. My computer connects to the server, I get back a page of text or an image of a zip file. Once and done.
- Comment on Those who are hosting on bare metal: What is stopping you from using Containers or VM's? What are you self hosting? 1 month ago:
Linux Mint 22
- Comment on Those who are hosting on bare metal: What is stopping you from using Containers or VM's? What are you self hosting? 1 month ago:
Im a hobbiest who just learned how to self host my website over the summer. I didn’t know anything so I went with what I knew which is a fresh install of linux and installing from the package manager. As im getting more serious im starting to take another look at docker. Unforunately my OS package manager only has old outdated versions of docker I may need to reinstall with like ubuntu/debian LTS server something with more cutting edge software in repo. I don’t care much for building from scratch and navigating dependency roulette.
- I wrote a simple tool chain for creating HTML pages for my self-hosted website. I released it publically under GPL3. Source linked insidelemmy.world ↗Submitted 1 month ago to selfhosted@lemmy.world | 8 comments
- Comment on Looking for a simple personal homepage 1 month ago:
I wrote my own set of tools in python that convert a simple gemtext formatted .gmi file into a static HTML file thats served by apache.
I’m a big fan of the Gemini Protocol project and found that handwriting pages in gemtext was ideal for focusing on text content and not worrying about formatting. Converting it to HTML+CSS with some scripts is pretty easy.
If anyone’s interested I can give a link, currently just hosting source locally on my website, really should get a public github running.
- Comment on ELI5: How to put several servers on one external IP? 4 months ago:
I’m also new to this but got all that figured out this week. As other commenters say you need a reverse proxy and configure it. I choose caddy over nginx for easy of install and config. I documented just about every step of the process. I’m a little scared to share my website on public fourms just yet but let me know if you want to see my infrastructure page where I share the steps and config files.
- Comment on Got any security advice for setting up a locally hosted website/external service? 4 months ago:
Pangolin.
- Comment on Vomiting Emoji 4 months ago:
Ding Ding, check this comment chain for your answer. Today you, tomorrow me.
- Comment on Vomiting Emoji 4 months ago:
Question one: yes and no. Most of the vomiting emojis shared here in comments are fake made using googles emoji kitchen thing. But there are many real modifiers for emojis like skin color or adding accents like tildes to regular english alphabet characters.
Question two: Modern keyboards typically have most emojis built in for you to select through. I dont think typing in the unicode values will automatically convert on phone operating systems but this might help if using windows or programming into a website.
the XKCD explained article on this actually gave some really great info.
- Comment on Got any security advice for setting up a locally hosted website/external service? 4 months ago:
Thanks for the input! I do eventually plan on making some scripts and a custom web interface to interact with/expose some local services on my network once I have the basics of HTML covered so would like to cover my ass early and not have problems later
- Submitted 4 months ago to selfhosted@lemmy.world | 19 comments
- Comment on PLASTICMAXXING 4 months ago:
The thing is that even if there isn’t much energy in plastic to be extracted, theres still enough energy in it to make a viable food source. Now, consider the humble panda and its primary food source, fucking eucalyptus leaves. Theyre so hard to chew that koalas had to spend evolutionary time and energy just to spec into it to the point they cant eat anything else pretty much. Combine that with the fact that eucalyptis leaves are so devoid of nutrients that the koala has to spend all day every day just snacking on them to not die of malnutrition.
Why? Why would a species even bother with this flim-flam if eucalypti sucks that bad as a food source? The answer is: Food scarcity. Because eucalytis grows everywhere where koalas live and because nobody else is bothering to tap into the food source, this sets up a ecological niche by pretty much gaurenteeing any animal that sucessfully finds a way to make it work will have unlimited amounts of food/energy just from the fact theres so damn much of it and nothing else wants to/can touch it. Sure koalas might have paid the price by sacrificing some brain wrinkles but who needs higher intelligence when you have leaves to snack on and sex to make babies.
A similar thing happened with trees and mushrooms. In the deep evolutionary history of our planet trees were once the apex forms of life with forest covering pretty much the whole planet. This is because nothing knew how to break down the wood making up stems for a good couple million years. Most of the coal and oil that we dig up today is actually the preserved remains of these unbroken down trees from the carboniferous period that just layed there petrified never rotting until the carbon compressed into hard rock or squeezed into liquid. The great change in the era happened when our humble mycelium bois finally figured out how to eat wood, causing them to essentially become the new apex life for a time.
- Comment on xkcd #3099: Neighbor-Source Heat Pump 4 months ago:
I prefer 293.15 K for sleeping but to each their own.
- Comment on Plex now will SELL your personal data 5 months ago:
From what Ive seen in arguments about this, Plex generally is more accessible with QoL and easier to understand interface for non-techie people to share with family/friends. Something thats hard for nerdy people to understand is that average people are perfectly fine paying for digital goods and services. They happily pay premiums just to not have to rub two braincells together. If you figure out how to make a very useful plug-an-play service that works without the end user of average intelligence/domain knowledge stressing about how to set up, maintain, and navigate confusing layouts, you’ve created digital gold.
- Comment on nyet 5 months ago:
Cool! Thank you for digging up that video I appreciate it :)
- Comment on nyet 5 months ago:
I believe you may be mistaken on the claim he didnt make them. Theres a good few videos floating around of him blowing the glass on numberphile. The Wikipedia just says he keeps the stock in his house.
- Comment on I'm guilty of not reading the f..ing documentation 5 months ago:
I volunteer as developer for a decade old open source project A sizable amount of my contribution is literally just cooking up decent documentation or re-writting old doc from the original module authors written close to a decade ago. Programmers as it turns out are very ‘eh, the code should explain itself to anyone with enough brains to look at it’ type of people who barely comment in the first place and so lost in the sauce of being a tech nerd instantly understanding all variables, functions, parameters, and syntax at very first glance at source code that they forgot the need for re-translation into regular human paragraphs for people who can barely navigate the command line… The seeming lack of college level english vocabulary/semantic proofreading abilities doesn’t help much either…
- Comment on xkcd #3084: Unstoppable Force and Immovable Object 5 months ago:
There are some pretty close physical analogs that are fun to think about. You cant move a black hole by exerting physical force on it in the normal way so practically infinite gravity wells are like a immovable “object”, though if you’re clever and nerdy enough you can cook some fun ways to harness its gravitational rotation into a kind of engine, or throw another black hole at it to create gravitational waves which are like a kind of unstoppable force which can just barely be detected with our finest LIGO sensors spanning a sizable length of the planet.
- Comment on YSK theres a open source tool to cleanly read webpage articles called 'NewsWaffle' 6 months ago:
True! Most browsers don’t have native gemini protocol support. However a web proxy like the ones I shared allow you to get gemini support no matter the web browser. Gemtext is a simplified version of markdown which means its not too hard to convert from gemtext to html/webpage. So, by scraping information from bloated websites, formatting it into the simple gemtext format markdown, then mirroring it back as a simple web/html page, it works together nicely to re-render bloated sites on simple devices using gemini as a formatting medium technology. You don’t really need to understand gemini protocol to use newswaffle+portal.mozz.us in your regular web browser
